Harbour Office Employing the latest technology the Harbour Office is an integral part of river management on the Tees, providing 24 hour radar surveillance and a computer system which records all details of berthing arrangements, ETAs and a variety of statistical data. A traffic control system operates during the movement of certain types of ships and cargoes. Apart from restrictions and tide limitations, the Port is open for vessel movements 24 hours a day. Hydrographic Survey Sophisticated state-of-the-art multi-beam surveying equipment on the specialist surveying vessel ‘Tees Navigator’ working with the newly ordered shallow water survey vessel ‘Tees Sentinal’ allow fast data gathering, frequent chart production and data sharing with the dredging vessel to allow the maintenance of the navigable channels to required depth. Dredging PD Ports has its own dredging fleet to maintain the navigable channels comprising two suction dredgers with high accuracy positioning and production systems; they are supported by a grab dredger to service berths and carryout specialist dredging works. Buoys Teesport operates its own bouy/work tender vessel with 30mt lift capacity to service the port’s establishment modern high quality polyethylene buoys. Pilotage Pilotage on the River Tees and Hartlepool’s Victoria Harbour is compulsory for certain categories of vessel: ships over 95 metres in length ships using the services of a tug ships over 20 metres and carrying hazardous cargoes ships over 80 metres in length if navigating on the Tees, up-river of No. 27 buoy